21301119

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19889}}^1$

素因数の和:19919

約数の個数: 24

約数和(自身を含む): 37234080

約数和(自身を除く): 15932961

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 119, 153, 357, 1071, 19889, 59667, 139223, 179001, 338113, 417669, 1014339, 1253007, 2366791, 3043017, 7100373, 21301119]

約数ペア:

[(1, 21301119), (3, 7100373), (7, 3043017), (9, 2366791), (17, 1253007), (21, 1014339), (51, 417669), (63, 338113), (119, 179001), (153, 139223), (357, 59667), (1071, 19889)]